阔叶红松林主要种群及林隙形成木的空间格局分析
[目的]分析小兴安岭阔叶红松林固定样地内主要种群及掘根林隙形成木的空间格局,为本地区阔叶红松林的长期经营管理和保护提供依据。[方法]基于野外调查和数据统计,利用点格局分析方法揭示了2.55 hm2样地内重要值排在前4位的种群在不同空间尺度上的空间格局和空间关联性及掘根林隙形成木的空间格局。[结果]表明：样地内胸径（DBH）≥1 cm的乔木共有8种,种群密度差异大。种群的径级结构大体上呈非对称的单峰型曲线。重要值排在前4位的是红松、红皮云杉、白桦和榆树。红松和白桦在整个研究尺度上均为聚集分布,红皮云杉随空间尺度的变化趋势为聚集-随机-均匀分布,榆树在≤16 m尺度上为随机分布,其余尺度上为聚集分...
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| Published in | 林业科学研究 Vol. 29; no. 3; pp. 395 - 401 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
东北林业大学林学院,黑龙江哈尔滨,150040%四川省达州市职业技术学院建工系,四川达州,635000
2016
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-1498 |
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| Abstract | [目的]分析小兴安岭阔叶红松林固定样地内主要种群及掘根林隙形成木的空间格局,为本地区阔叶红松林的长期经营管理和保护提供依据。[方法]基于野外调查和数据统计,利用点格局分析方法揭示了2.55 hm2样地内重要值排在前4位的种群在不同空间尺度上的空间格局和空间关联性及掘根林隙形成木的空间格局。[结果]表明：样地内胸径（DBH）≥1 cm的乔木共有8种,种群密度差异大。种群的径级结构大体上呈非对称的单峰型曲线。重要值排在前4位的是红松、红皮云杉、白桦和榆树。红松和白桦在整个研究尺度上均为聚集分布,红皮云杉随空间尺度的变化趋势为聚集-随机-均匀分布,榆树在≤16 m尺度上为随机分布,其余尺度上为聚集分布。除红松与红皮云杉、白桦、榆树之间在小尺度呈显著负相关,以及红皮云杉与榆树在小尺度上呈显著正相关外,其余种群的空间关联性均不显著。样地内红松和红皮云杉是掘根林隙形成木的主要组成树种,掘根形成的林隙形成木空间分布格局除在3 6 m尺度上呈均匀分布外,其余研究尺度均呈随机分布。[结论]小兴安岭阔叶红松林不同种群在不同的研究尺度上空间分布格局及空间关联性存在差异,红松和红皮云杉易形成掘根倒木且整体上呈随机分布。 |
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| AbstractList | S718.55; [目的]分析小兴安岭阔叶红松林固定样地内主要种群及掘根林隙形成木的空间格局，为本地区阔叶红松林的长期经营管理和保护提供依据。[方法]基于野外调查和数据统计，利用点格局分析方法揭示了2．55 hm2样地内重要值排在前4位的种群在不同空间尺度上的空间格局和空间关联性及掘根林隙形成木的空间格局。[结果]表明：样地内胸径（DBH）≥1 cm的乔木共有8种，种群密度差异大。种群的径级结构大体上呈非对称的单峰型曲线。重要值排在前4位的是红松、红皮云杉、白桦和榆树。红松和白桦在整个研究尺度上均为聚集分布，红皮云杉随空间尺度的变化趋势为聚集－随机－均匀分布，榆树在≤16 m尺度上为随机分布，其余尺度上为聚集分布。除红松与红皮云杉、白桦、榆树之间在小尺度呈显著负相关，以及红皮云杉与榆树在小尺度上呈显著正相关外，其余种群的空间关联性均不显著。样地内红松和红皮云杉是掘根林隙形成木的主要组成树种，掘根形成的林隙形成木空间分布格局除在36m尺度上呈均匀分布外，其余研究尺度均呈随机分布。[结论]小兴安岭阔叶红松林不同种群在不同的研究尺度上空间分布格局及空间关联性存在差异，红松和红皮云杉易形成掘根倒木且整体上呈随机分布。 [目的]分析小兴安岭阔叶红松林固定样地内主要种群及掘根林隙形成木的空间格局,为本地区阔叶红松林的长期经营管理和保护提供依据。[方法]基于野外调查和数据统计,利用点格局分析方法揭示了2.55 hm2样地内重要值排在前4位的种群在不同空间尺度上的空间格局和空间关联性及掘根林隙形成木的空间格局。[结果]表明：样地内胸径（DBH）≥1 cm的乔木共有8种,种群密度差异大。种群的径级结构大体上呈非对称的单峰型曲线。重要值排在前4位的是红松、红皮云杉、白桦和榆树。红松和白桦在整个研究尺度上均为聚集分布,红皮云杉随空间尺度的变化趋势为聚集-随机-均匀分布,榆树在≤16 m尺度上为随机分布,其余尺度上为聚集分布。除红松与红皮云杉、白桦、榆树之间在小尺度呈显著负相关,以及红皮云杉与榆树在小尺度上呈显著正相关外,其余种群的空间关联性均不显著。样地内红松和红皮云杉是掘根林隙形成木的主要组成树种,掘根形成的林隙形成木空间分布格局除在3 6 m尺度上呈均匀分布外,其余研究尺度均呈随机分布。[结论]小兴安岭阔叶红松林不同种群在不同的研究尺度上空间分布格局及空间关联性存在差异,红松和红皮云杉易形成掘根倒木且整体上呈随机分布。 |
| Abstract_FL | [Objective]To analyze the spatial pattern of main populations and gap makers formed by uprooting in permanent plot in Korean pine broad-leaved forest of Xiaoxing’anling Mountains.[Method]Based on field surveys and data statistics,the spatial distribution pattern and spatial association of four most important populations and the gap makers formed by uprooting at different spatial scales in the 2.55 hm2 permanent plot were studied by using point pattern analysis.[Result]The result showed that great differences in the density of main populations were ob-served for total 8 tree species with DBH greater than 1 cm in tree layer.The DBH class structure of all populations roughly exhibited asymmetrically unimodal curve.The importance values of Pinus koraiensis,Picea koraiensis,Betu-la platyphylla and Ulmus spp.were ranked the top four in this plot.Pinus koraiensis and Betula platyphylla exhibi-ted an aggregated distribution pattern at the whole research scale.The spatial distribution pattern of Picea koraiensis changed from aggregated,random to uniform distribution over the spatial scale.For Ulmus spp.,its distribution was aggregated at ≤16 m scale and random at the other scales.Except that the significant negative correlation existed between Pinus koraiensis and Picea koraiensis,Pinus koraiensis and Betula platyphylla,Pinus koraiensis and Ulmus spp.at small scale,significant positive correlation between Picea koraiensis and Ulmus spp.at small scale,no sig-nificant spatial associations were observed among the other populations.Pinus koraiensis and Picea koraiensis were the major components of gap makers formed by uprooting in the plot.Spatial distribution pattern of gap makers was characterized as uniform distribution at 3 6 m scale and random distribution at all other research scales.[Conclu-sion]There were differences in spatial distribution pattern and spatial association among populations in different re-search scale in Korean pine broad-leaved forest of Xiaoxing’anling Mountains,Pinus koraiensis and Picea koraiensis are easy to form uprooted treefalls with the whole random distribution in the plot. |
| Author | 张玉双 段文标 杜珊 段文靖 王安娜 |
| AuthorAffiliation | 东北林业大学林学院,黑龙江哈尔滨150040 四川省达州市职业技术学院建工系,四川达州635000 |
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| Author_FL | ZHANG Yu-shaung DUAN Wen-jing WANG An-na DU Shan DUAN Wen-biao |
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| DocumentTitleAlternate | Analysis on Spatial Distribution Pattern for Main Populations and Gap Makers in Korean Pine Broad-leaved Forest in Xiaoxing’anling Mountains of Northeast China |
| DocumentTitle_FL | Analysis on Spatial Distribution Pattern for Main Populations and Gap Makers in Korean Pine Broad-leaved Forest in Xiaoxing’anling Mountains of Northeast China |
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| Keywords | point pattern analysis 林隙形成木 population structure 种群结构 gap maker Korean pine broad-leaved forest 点格局分析 阔叶红松林 种间关联性 |
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| Notes | 11-1221/S Korean pine broad-leaved forest;population structure;gap maker;point pattern analysis [Objective]To analyze the spatial pattern of main populations and gap makers formed by uprooting in permanent plot in Korean pine broad-leaved forest of Xiaoxing’anling Mountains.[Method]Based on field surveys and data statistics,the spatial distribution pattern and spatial association of four most important populations and the gap makers formed by uprooting at different spatial scales in the 2.55 hm2 permanent plot were studied by using point pattern analysis.[Result]The result showed that great differences in the density of main populations were ob-served for total 8 tree species with DBH greater than 1 cm in tree layer.The DBH class structure of all populations roughly exhibited asymmetrically unimodal curve.The importance values of Pinus koraiensis,Picea koraiensis,Betu-la platyphylla and Ulmus spp.were ranked the top four in this plot.Pinus koraiensis and Betula platyphylla exhibi-ted an aggregated distribution |
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| PublicationTitle | 林业科学研究 |
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| Publisher | 东北林业大学林学院,黑龙江哈尔滨,150040%四川省达州市职业技术学院建工系,四川达州,635000 |
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| Snippet | [目的]分析小兴安岭阔叶红松林固定样地内主要种群及掘根林隙形成木的空间格局,为本地区阔叶红松林的长期经营管理和保护提供依据。[方法]基于野外调查和数据统计,利用点格局... S718.55; [目的]分析小兴安岭阔叶红松林固定样地内主要种群及掘根林隙形成木的空间格局，为本地区阔叶红松林的长期经营管理和保护提供依据。[方法]基于野外调查和数据统... |
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| SubjectTerms | 林隙形成木 点格局分析 种群结构 种间关联性 阔叶红松林 |
| Title | 阔叶红松林主要种群及林隙形成木的空间格局分析 |
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